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Daily Archives: 7 Dec 2011

Researchers have found a bright vein of gypsum, a mineral that could only have been deposited by water. The finding suggests that billions of years ago warm water flowed through underground fractures in the rocks. –NASA Rover Spots Unambiguous Evidence for Water on Ancient Mars | Wired Science | Wired.com.

Apple just released an update of its very nice iBooks. The Kindle still is my preferred ereader for personal reasons, but I prefer to teach with iBooks. Last year when I taught a literature survey, I experimented with asking students to use out-of-copyright free etexts, and to annotate them in iBooks. The fact that iBooks lets students annotate texts in different colors was very useful as I was introducing the…